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  • Writer's pictureGeorge Ficken

Orbital Welding for Sanitary Tubing

Updated: Sep 22, 2023



Orbital welding is a specialized welding process widely employed in industries requiring high-quality, sanitary tube welding. This technique is particularly vital in applications where cleanliness, precision, and the maintenance of sterile environments are paramount, such as pharmaceuticals, food and beverage production, biotechnology, and semiconductor manufacturing. Orbital welding offers several advantages in these settings, making it the method of choice for joining sanitary tubes.


At its core, orbital welding automates the welding process using a machine that rotates the electrode and the workpiece around the joint. In the context of sanitary tube welding, this automation ensures consistent, high-quality welds with minimal human intervention. The precision and repeatability of orbital welding are crucial for achieving the desired weld quality, which is essential in sanitary applications.


Sanitary tube welding involves joining stainless steel or other corrosion-resistant materials to create a network of tubing for transporting liquids or gases. Maintaining the purity of these fluids is critical to prevent contamination and ensure product safety. Orbital welding employs a Tungsten Inert Gas (TIG) welding process, where a non-consumable tungsten electrode and a shielding gas, usually argon, are used to create a clean, inert atmosphere around the weld area. This inert environment prevents the formation of impurities and oxidation, ensuring the integrity of the weld and the purity of the system.


The precision offered by orbital welding machines is especially beneficial for sanitary tube welding. It allows for consistent bead profiles, precise control over critical welding parameters such as travel speed and current, and the creation of welds with minimal heat-affected zones. These characteristics are essential for achieving leak-free, sanitary joints that meet stringent quality and cleanliness standards. In industries like pharmaceuticals and food processing, where even minute impurities can have significant consequences, orbital welding plays a crucial role in maintaining product integrity.


One key advantage of orbital welding is its ability to maintain strict tolerances. The machines can be programmed to follow precise welding procedures, ensuring that each weld is uniform and conforms to industry standards. This repeatability is essential in sanitary tube welding because it minimizes variations in weld quality and helps avoid defects that could compromise the system's cleanliness and integrity.


In conclusion, orbital welding is a highly automated and precise welding technique ideally suited for sanitary tube welding applications. It guarantees the quality and purity of welds while meeting the stringent cleanliness standards required in industries like pharmaceuticals, food and beverage production, and biotechnology. By employing TIG welding with inert gas shielding and automation, orbital welding provides a consistent, defect-free, and sanitary solution for joining tubes in critical applications, ultimately contributing to product safety and integrity.


GSI Machinery rents, sells, services and offers training for orbital welding equipment for both pipe and tube, wire-fed and autogenous applications. If you are considering orbital for the first time or want a top-class supplier to rent from please reach out.

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